Effects of anthelmintic treatment on ewe feed intake, digestion, milk production and lamb growth

Zhong, Rongzhen; Cheng, Long; Wang, Y. Q.; Sun, Xuezhao; Luo, Dongwen; Fang, Yi; Bush, R. D.; Zhou, Daowei

doi:10.1017/s0021859616000721

Cited by 11 publications

(9 citation statements)

References 29 publications

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“…Power plants continue to use energy for spending networks indefinitely, and it is not clear how cost-effective these networks are. In this case, it would be illogical to establish and to develop a network [15]. (As a side note, backup and balancing are less costly in the United States because the dispatchable power is typically gas fired, which is less costly there.…”

Section: Discussionmentioning

confidence: 99%

Nuclear Power Plant or Solar Power Plant

Shayan¹,

Ghasemzadeh²

2021

Nuclear Power Plants - The Processes From the Cradle to the Grave

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Both solar energy and nuclear energy face significant economic challenges. Sustainable energy costs have traditionally been greater than any of those associated with the growth of fossil fuel power generation, although the costs of renewable energy technologies (especially photovoltaic) have dropped. Furthermore, capital costs remain a big challenge in the nuclear generation. In many nations, the cost of building small nuclear power plants is quite large due to time, technology, and environmental and safety challenges for consumers. Such problems might not be as big for state-owned corporations or controlled industries for which utilities have quick access to cheap resources, and this partially explains why the interest for nuclear reactors in Asia is far greater than in the United States or Europe. Learning could help decrease costs for both types of technologies, but the track record for learning-by-doing in the nuclear sector is not good.

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Section: Discussionmentioning

confidence: 99%

Nuclear Power Plant or Solar Power Plant

Shayan¹,

Ghasemzadeh²

2021

Nuclear Power Plants - The Processes From the Cradle to the Grave

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“…Canada created a 5 kW floating PV plant [21]. In 2017, Zhong et al [22] examined the issue of small consumers using solar electricity. Recently, the parametric design of solar farms and small-scale power plants to address urban electricity needs was investigated [23,24].…”

Section: Literature Reviewmentioning

confidence: 99%

Floating Solar Power Plants: A Way to Improve Environmental and Operational Flexibility

Shayan

Hojati²

2021

IJEE

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The Photovoltaic modules installed on the surface of the water are naturally cooled, reducing the loss of thermal power generation. Floating photovoltaic systems (FPVS) combine existing photovoltaic systems with a floating structure to generate clean energy. To meet the growing electricity demand, FPV systems will be integrated alongside existing dams to enhance existing power sources. The results indicate that the investment toward installing FPV systems over the dams' reservoirs leads to a significant improvement in the overall system reliability minimizes load curtailment, and could potentially add more flexibility to the operator to dispatch power generated by hydropower plants during peak demands. The execution of the Karun-4 FPV power plant with an annual production of 16758969 kWh of energy has reduced the water evaporation of the dam's reservoir water and after eight years and four months, the investment cost was returned and its nominal performance is 81.7 percent. Adding a floating solar power plant with 10% of the lake reservoir cover of six dams saves 70.7 million cubic meters of water per year. This amount of fresh water is enough to meet the annual needs of one million people.

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“…Gastrointestinal nematode (GIN) infections are a common constraint in pasture-based herds and can cause a decrease in animal health, productivity and farm profitability [1]. The impact of GIN infection in sheep is linked to clinical signs associated with the infection and also to subclinical economic losses due to decreased growth and milk production [2,3]. Nowadays these infections remain a major constraint to ruminants' health, welfare and productive performance worldwide [4,5].…”

Section: Introductionmentioning

confidence: 99%

Use of Complementary Natural Feed for Gastrointestinal Nematodes Control in Sheep: Effectiveness and Benefits for Animals

Castagna

Palma

Cringoli

et al. 2019

Animals

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The treatments of gastrointestinal nematodes (GIN) infection in sheep is almost exclusively based on the use of synthetic drugs. In some European regions the intensive use of antiparasitic drugs is leading to widespread development of anthelmintic resistance (AR). Currently in southern Italy AR is rare, but a constant monitoring of anthelmintic efficacy and the use of effective alternative therapies is strongly recommended. The aim of our study was to evaluate the effectiveness of a complementary natural feed (natural vegetable mixture), based on natural extracts, registered for GIN treatment in sheep, and its comparison with the drug ivermectin. The study was conducted in two sheep breeding farms in southern Italy and 75 sheep were divided in groups of 15 animals each (treated and untreated groups), homogeneous by GIN eggs per gram (EPG) of faeces, using the natural anthelmintic administered at full dose (10 g/sheep/orally) in the first breeding and at double dose (20 g/sheep/orally) in the second. In the latter we compared the effectiveness of mixture with ivermectin administered at full dose (200 μg/kg/BW). To determine the effectiveness, individual faecal samples were collected to evaluate the faecal eggs count (FEC) using FLOTAC technique and FEC reduction (FECR) on different days. The formula used FECR = 100 × (1 − (T2/C2)), based on the comparison of post-treatment EPG mean of the treated and untreated group (T2 and C2, respectively), is the one recommended by World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guidelines to monitor drug efficacy against GIN in livestock. The results reported that complementary natural feed, at two different dosages, was ineffective against GIN, while the drug, at conventional dosage, showed good anthelmintic efficacy, also confirming the importance of in vivo effectiveness studies.

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Effects of anthelmintic treatment on ewe feed intake, digestion, milk production and lamb growth

Cited by 11 publications

References 29 publications

Nuclear Power Plant or Solar Power Plant

Nuclear Power Plant or Solar Power Plant

Floating Solar Power Plants: A Way to Improve Environmental and Operational Flexibility

Use of Complementary Natural Feed for Gastrointestinal Nematodes Control in Sheep: Effectiveness and Benefits for Animals

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